i completely disagree... of course buds that you grow under any form of cfl lighting is not going to be as tight as bud grown under hids, no way, no how.. it's all about light density and lumens.. the more of each you have, the denser the buds will be...
it's pretty much the same as saying that buds grown under a 250 watt light, hid or not, are going to be as tight as the same buds grown under a 1k light, given that everything else is the same, environmental factors, etc... it's a simple fact, cfls will never produce the same quality of bud as hids, which is why more people will flower under hids and not cfls..
genetics or not, it's all about the lighting at the end of the day.. you grow the same strain under 300 watt's of cfl, and take that same strain and simply switch ou tthe lights to 300 watts of hid and keep everything else the same, and you're absolutely going to have tighter buds, simple fact..